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Myshkin Ingawale, who invented the app, told the BBC: "I wanted to get medical health checks into users' hands."

As well as being used by individuals, the app is undergoing testing at the King Edward Memorial hospital in Mumbai, India.

"If it does well we can make it available to mobile clinics. Instead of buying a $10,000 machine they can use their existing smartphones," Mr Ingawale, a campaigner for consumer-based health care, said.

He added: “There is huge potential to get the world of biochemistry out to users via apps.

"There needs to be a rethink in the way health care is delivered to people," he said.

Initially Uchek will only available on iOS, but an Android version will follow.

Earlier at TED, U2’s Bono addressed delegates, telling them he was a “nerd” and an “insufferable jumped-up Jesus” that thought extreme poverty could be eliminated by 2030.

He put his trademark tinted glasses on upside down before telling the audience: "Forget the rock opera, forget the bombast. The only thing singing today is the facts. I have truly embraced my inner nerd. Exit the rock star. Enter the evidence-based activist. The factavist."

Bono was awarded the first TED Prize in 2005 and said he used the "wish" granted by the group of scientists, entrepreneurs, politicians and assorted celebrities to help fight extreme poverty.